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MFRC522 Fiches technique(PDF) 82 Page - NXP Semiconductors

No de pièce MFRC522
Description  Contactless reader IC
PDF  96 Pages
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Fabricant  NXP [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC522 Fiches technique(HTML) 82 Page - NXP Semiconductors

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MFRC522_33
© NXP B.V. 2009. All rights reserved.
Product data sheet
PUBLIC
Rev. 3 — 26 October 2009
112133
82 of 96
NXP Semiconductors
MFRC522
Contactless reader IC
16.1.3.3
Example: Output test signals ADC channel I and ADC channel Q
Figure 30 shows the channel behavior test signals ADC_I and ADC_Q on pins AUX1 and
AUX2, respectively. The AnalogTestReg register is set to 56h.
(1) MinLevel (1 V/div) on pin AUX2.
(2) Corr1 (1 V/div) on pin AUX1.
(3) RF field.
Fig 29. Output test signals Corr1 on pin AUX1 and MinLevel on pin AUX2
10
µs/div
001aak598
(1)
(2)
(3)
(1) ADC_I (1 V/div) on pin AUX1.
(2) ADC_Q (500 mV/div) on pin AUX2.
(3) RF field.
Fig 30. Output ADC channel I on pin AUX1 and ADC channel Q on pin AUX2
5
µs/div
001aak599
(1)
(2)
(3)



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